Here’s your weird news of the day: According to Japanese biologists (via The Telegraph), a sea slug creature called the Chromodoris reticulata has been found to shed its penis following sex.

“No other animal is known to repeatedly copulate using such ‘disposable penes,” a team of scientists have written in the Royal Society journal Biology Letters.

The red-and-white Southeast Asian sea slug keeps a spare penis inside its body that begins growing immediately following the shedding of the “used” one.
 
“We propose that the tissue at the spiral part of the penis is compressed and undifferentiated, gradually differentiating into the ‘next penis’,” the team explains.

It takes about 24 hours for the new penis to be all ready for its next partner, but before your man becomes too jealous about not being able to grow a new penis daily, here’s the kicker: On top of having spares, the sea slug also happens to be a hermaphrodite.

So while many animals discard parts of their body, like the gecko, few seem willing to part with their penis — and that’s probably a wise evolutionary decision!

Source: Telegraph 

 

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